Island



(No Model.)

S. J. STONE 82; P. E. FARNHAM.

COLLAR BUTTON.

No. 556,219. Patented Mar. 10, 1896.

AN DREW ILGRAHAM, PNOTO-LITHU4WASHINGTDNDQ UNITED STATES PAT NT OFFICE.

SAMUEL J. STONE AND FRANK E. FARNHAM, OF PROVIDENCE, RHODE ISLAND.

COLLAR-BUTTON.

SPECIFICATION forming part of Letters Patent No. 556,219, dated March10, 1896.

Application filed October 21, 1895. Serial No. 566,339. (No model.)

To all whom it may concern.-

Be it known that we, SAMUEL J. STONE and FRANK E. FARNHAM, of the cityand county of Providence, in the State of Rhode Island, have invented acertain new and useful Improvement in Collar-Buttons and Studs;- and wedeclare the following to be a specification thereof, reference being hadto the accompanying drawings.

Like letters indicate like parts.

Figure 1 is a side elevation of our invention. Fig. 2 is a sectionalview of the same, as seen on line 0c of Fig. 1, the shank being shown inelevation. Fig. 3 is a side elevation of the lining-plate and itstubular extension. Fig. 4 is a bottom plan view of said liningplate withsaid extension, shown in section on line y y of Fig. 3. Figs. 5 and 6are respectively a side view and a top plan of the combined pusher andspring-arms. Fig. 7 is a plan view of the combined pusher andspring-arms in position within the shoe, the shank and theextension-piece of the liningplate being shown on section-line z z ofFig. 2. Fig. 8is a top plan of the combined pusher and spring-arms asseen in position within the shoe when the pusher and spring-arms arepressed inwardly, and the extension-piece is shown 011 section-line z 2of Fig. 2, but the shank has been withdrawn. Figs. 9 and 10 representmodified forms of our invention.

Our invention relates to that class of separable buttons having a heador front with a shank connected therewith, a separate shoe havingtherein a spring to engage said shank, and a pusher to operate saidspring. It consists of the combination of a button head or front havinga shank whose end is rounded and provided with a circumferential grooveor channel, a separate shoe having a liningplate provided with a centralaperture, and a tubular extension or socket adapted to receive the endof the shank, divergent transverse slots made in said tubular extension,and a pusher mounted in the shoe through a slot thereof and providedwith springs of a peculiar shape integral therewith and adapted to besupported in the slots of said extensionpieee of the lining-plate and toengage said shank in the circumferential groove thereof to lock the samein position, as hereinafter particularly specified.

In the drawings, A is the ornamental head or front of the button, and Bthe shank attached to said head in the center of the under side thereof.The shank B has the rounded end a and the circumferential groove orchannel b.

C is the shoe. The lining-plate D is held in place in the shoe by theedges of said shoe, which are turned over upon it, as illustrated inFig. 2. The lining-plate D is disk-shaped and has a central aperture 0and a central tubular extension or piece d, which are adapted to receivethe shank B therein. The extension-piece d is slotted transversely inthe divergent directions shown at e in Fig. 4.

The pusher F has integral therewith the two spring-arms G, which arebent in a curve, as shown in Fig. (3, but whose ends are straight andparallel and terminate with the beveled faces f. The pusher is mountedin the shoe 0 through a slot g therein.

The parts are assembled as shown in Figs. 1 and 7, and in theirnormalposition the inner edges of the straight portions of the springarms G,resting upon the slotted parts of the extension-piece d of thelining-plate D within the shoe, embrace and engage the shank B in thecircumferential groove or channel I) thereof, and so look the shank tothe shoe. In Fig. 7 the central black circle indicates the shank B, asseen in cross-section on line .2 z of Fig. 2, and the concentric whitering indicates the said groove 1), while the two outer black arcs showthe unslotted parts of the tubular extension d.

To disengage the shank B and its ornamental head A from the shoe 0, thepusher F is pressed inwardly in the direction shown by the arrow in Fig.8. This movement causes the inclined ends f of the spring-arms G toslide along the inclined inner ends of the slots 6 of theextension-piece d, which serve as fixed cam-surfaces, and the free endsof the spring-armsG are thus spread apart, and so the inner edges of thestraight portions of said springs are moved out of their engagement withthe groove h of the shank B and allow the shank 13 to be withdrawn fromthe socket or tubular extension (1 of the liningplate D. The inner endan of the pusher F, which extends centrally within the bow of thespring-arms G, as shown, limits the inward movement of the pusher bycoming in contact with the exterior surface of the unslotted part of theextension-piece (Z. Fig. 8 illustrates the position of said pusher andspring-arms at the end of said inward movement, where it is seen thatalthough the spring-arms are still supported in the slots r: of theextensionpiece (Z the straight portions of said springarms are so widelyspread apart that the shank B can easily be withdrawn from the bore ofsaid socket or tubular extension. The resilience of the spring-arms Gcause the pusher F to resume its former position when released frompressure.

In Figs. 9 and 10 we show a modified form of our invention, in which inFig. 0 the dotted central circle indicates the groove 1) of the shank.3, the intermediate circle the cyindrical surface of the shank, and theouter circle at the center represents the exterior of the cylindricaltubular extension. In these figures the slots are not angularlydisposed, but parallel with each other on opposite sides of theextension-piece; but a cylindrical post or block ll, fixed upon thelining-plate D, is between the flaring ends of the spring-arms (l, andthe inward movement of the pusher (illustrated in Fig. 10) spreads thearms apart to allow their disengagement from the groove 1) of the shank13, as hereinbefore described.

The characteristic feature of our invention is that the pusher andsprings, being integral, are in the same plane, whereas in all formerdevices of this class they have been in separate pieces and in differentplanes. By our peculiar construction we are able to place this lockingdevice in a much smaller space than has been heretofore possible, andtherefore our invention is well adapted to line gold work and to smalldesigns and patterns.

\Ye claim as a novel and useful invention and desire to secure byLetters Patent 11,. In a separable button, the combination with a shoe,a button-head with a shank attached thereto and provided with a roundedend and a circumferential groove, of a liningplate, held in said shoe,as shown, and provided with a central aperture and a central tubularextens ion,with transversely-arranged slots, a pusher mounted in theshoe through a slot thereof and provided with spring-arms, whichterminate in straight parallel ends,having inclined faces, which armsare supported in the slots of said extension-piece and embrace by theinner edges of the straight ends the said shank in the circumferentialgroove thereof and are adapted to be spread apart by sliding on a fixedcam-surface, substantially as specified.

2. The improved separable button herein described, consisting of thebutton-head A, having the shank 13, which is provided with a rounded enda and a circumferential groove 1), the shoe (l having the lining-plate1), held therein, which is made with a central. aperture c and a centraltubular extension-piece (Ltransversely slotted as at c, on oppositesides thereof in divergent directions, the pusher F, mounted in the shoethrough the slot r thereof and having, integral therewith, thespring-arms G, made with a bow, but with their ends straight andparallel and tcrminating in inclined faces f, which spring-arms aresupported in the slots c of said extension-piece (Z, but are adapted toembrace by their inner strziight edges the shank in the channel orgroove 1) thereof, and the inner project ion or end on of the pusher F,adapted to serve as a stop, all arranged and operating substantiall v asspecified.

SAMUEL .I. STONE FRAN b: E. FA] N l I'AM.

Witnesses:

FREDERICK A. Banner, WARREN R. Pinion.

